An ALMA multi-line survey of the ISM in two quasar host-companion galaxy pairs at $z>6$

A. Pensabene, R. Decarli, E. Bañados +15

We present a multi-line survey of the interstellar medium (ISM) in two $z>6$ quasar (QSO) host galaxies, PJ231-20 ($z=6.59$) and PJ308-21 ($z=6.23$), and their two companion galaxi…